The Bolt-hex,head 8x16 is the cheapest item from this partsfiche.
The Ring-snap,16mm is the most widely applied product in the KM100-A4 1979 USA CANADA / MPH KPH TRANSMISSION (KM100-A6/A7) ( three times ).
This Transmission (km100-a6/a7) diagram displays the required parts for the Km100-a4 1979 Usa Canada / Mph Kph Transmission (km100-a6/a7).